vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2020-27725

MEDIUM
4.3
CVSS Score
Published: December 24, 2020 at 03:01 PM UTC
Updated: June 17, 2026 at 03:09 AM UTC
3 products affected across 1 vendorBig IP Link ControllerBig IP Global Traffic ManagerBig IP Domain Name System

Using BIG-IP DNS, GTM, and Link Controller by N/A?

Get instant alerts when new vulnerabilities affect BIG-IP DNS, GTM, and Link Controller - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM4.3
Exploit prediction
EPSS 0.8%

Description

In version 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2 of BIG-IP DNS, GTM, and Link Controller, zxfrd leaks memory when listing DNS zones. Zones can be listed via TMSH, iControl or SNMP; only users with access to those services can trigger this vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Big IP Domain Name System· F5
95%
11.6.1 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.513.1.0 ≤ v < 13.1.3.514.1.0 ≤ v < 14.1.3.115.0.0 ≤ v < 15.1.111.6.1-11.6.5.212.1.0-12.1.5.213.1.0-13.1.3.414.1.0-14.1.315.1.0-15.1.0.5
Affected range stops below 13.1.3.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.3.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.1, so it looks safe — our inference, not a vendor statement
Big IP Global Traffic Manager· F5
95%
11.6.1 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.513.1.0 ≤ v < 13.1.3.514.1.0 ≤ v < 14.1.3.115.0.0 ≤ v < 15.1.111.6.1-11.6.5.212.1.0-12.1.5.213.1.0-13.1.3.414.1.0-14.1.315.1.0-15.1.0.5
Affected range stops below 13.1.3.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.3.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.1, so it looks safe — our inference, not a vendor statement
Big IP Link Controller· F5
95%
11.6.1 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.513.1.0 ≤ v < 13.1.3.514.1.0 ≤ v < 14.1.3.115.0.0 ≤ v < 15.1.111.6.1-11.6.5.212.1.0-12.1.5.213.1.0-13.1.3.414.1.0-14.1.315.1.0-15.1.0.5
Affected range stops below 13.1.3.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.3.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://support.f5.com/csp/article/K25595031

CVSS

4.3MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-401

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card